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经营范围
发明名称
Aus Formsteinen bestehender Stollen-, Schacht- oder Tunnelausbau
摘要
申请公布号
DE528659(C)
申请公布日期
1931.07.02
申请号
DE1926SC79450D
申请日期
1926.07.09
申请人
N.V. MONTANIA
发明人
分类号
E21D11/06
主分类号
E21D11/06
代理机构
代理人
主权项
地址
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